Volcanic activity worldwide 23 Sep 2015: Piton de la Fournaise volcano

Wed, 23 Sep 2015, 21:00 21:00 PM |

New surface lava flow from Piton de la Fournaise last night

Piton de la Fournaise (La Réunion): (23 Sep) The eruption continues into its second month,- for Piton de La Fournaise's standards this is an unusually long-lived one. Accompanied by stable tremor, effusive activity remains strong and feeds a growing lava flow field that slowly expands towards the east in direction of the Grandes Pentes.
At the site of the main vent near Piton Rivals, a cone with a small lava lake has formed. From there, the lava flows for a large part of its path through lava tubes that then feed several flow branches further downslope. Occasionally, when parts of the tube system becomes blocked or unstable, new surface flows develop near the vent, such as last night when a new surface flow appeared that began flowing to the southeast.

Volcano Activity Summary for 23 Sep 2015:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 24 May 2015)
Aso (Kyushu): steaming, occasional phreatomagmatic or strombolian explosions (updated 14 Sep 2015)
Bagana (Bougainville Island, Papua New Guinea): ash emissions, lava dome growth (updated 5 Jun 2015)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 5 Jul 2015)
Colima (Western Mexico): intermittent explosions from summit crater (updated 9 Sep 2015)
Cotopaxi (Ecuador): vulcanian explosions (updated 16 Aug 2015)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 31 Aug 2015)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
Erta Ale (Ethiopia): active lava lake in northern pit crater, active hornito with intermittend flow in southern crater (updated 11 Jan 2013)
Fuego (Guatemala): intermittent strombolian explosions (updated 4 Sep 2015)
Gamalama (Halmahera): new eruption on 18 Dec 2014 (updated 8 Sep 2015)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 14 Nov 2014)
Karangetang (Siau Island, Sangihe Islands, Indonesia): strombolian activity, incandescent lava avalanches (updated 17 Sep 2015)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 21 Aug 2015)
Kilauea (Hawai'i): new lava flow from vents on NE flank of Pu'u 'O'o (updated 28 Apr 2015)
Kliuchevskoi (Kamchatka): ash emissions, weak strombolian activity (updated 11 May 2015)
Manam (Papua New Guinea): large explosion on 31 July 2015 (updated 31 Aug 2015)
Michael (United Kingdom, South Sandwich Is): ash emissions (updated 31 Aug 2015)
Nevado del Ruiz (Colombia): intermittent ash emissions, strong degassing (updated 21 Sep 2015)
Nishino-shima (Volcano Islands, Japan): growing island (updated 8 Aug 2015)
Nyiragongo (DRCongo): active lava lake in summit crater (updated 26 Feb 2014)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Pacaya (Guatemala): weak strombolian activity in summit crater (updated 18 Aug 2015)
Piton de la Fournaise (La Réunion): new eruption since 24 Aug 2015 (updated 23 Sep 2015)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 18 Aug 2015)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): lava fountains, ash emissions from Tavurvur cone (updated 12 Sep 2014)
Reventador (Ecuador): lava flow on SW flank (updated 17 Aug 2015)
Sakurajima (Kyushu, Japan): seismic swarm, eruption warning (updated 19 Aug 2015)
Sangay (Ecuador): likely strombolian eruptions at summit crater (updated 13 Mar 2015)
Santiaguito (Guatemala): small explosions from the Caliente dome and active lava flow (updated 25 Aug 2015)
Semeru (East Java, Indonesia): growing lava dome, lava flow, strombolian activity (updated 16 Jun 2015)
Shiveluch (Kamchatka): growing lava dome (updated 9 Sep 2015)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 21 Sep 2015)
Soputan (North Sulawesi, Indonesia): active viscous lava flow, explosions, rockfalls, pyroclastic flows (updated 9 Mar 2015)
Stromboli (Eolian Islands, Italy): weak strombolian activity at summit vents (updated 16 Apr 2015)
Suwanose-jima (Ryukyu Islands): strombolian activity (updated 3 Aug 2015)
Telica (Nicaragua): sporadic ash emissions and explosions (updated 28 May 2015)
Tungurahua (Ecuador): ash emissions, explosions (updated 27 Aug 2015)
Villarrica (Central Chile): small lava lake in summit crater (updated 12 May 2015)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2013)

Eruption warning / minor activity:

Asama (Honshu): occasional small explosions since 16 June 2015 (updated 22 Jun 2015)
Augustine (Cook Inlet (SW Alaska))
Barren Island (Indian Ocean): weak thermal hot spot (updated 19 Aug 2015)
Bezymianny (Central Kamchatka Depression): steaming, weak seismic activity (updated 3 Jul 2014)
Bulusan (Luzon Island, Philippines): occasional phreatic explosions (updated 16 Jun 2015)
Chirinkotan (Northern Kuriles): sporadic ash emissions (updated 28 Jul 2015)
Cleveland (Aleutian Islands, Alaska): intermittent explosions (updated 12 Aug 2015)
Copahue (Chile/Argentina): ash venting (updated 4 Dec 2014)
Etna (Sicily, Italy): sporadic weak ash emissions from New SE crater (updated 19 Apr 2014)
Heard (Australia, Southern Indian Ocean): possibly lava lake in summit crater (updated 5 Dec 2014)
Kavachi (Solomon Islands): no eruption since 2007 (updated 16 Jun 2014)
Kerinci (Sumatra): seismic unrest, steam emissions (updated 5 Jun 2013)
Kick 'em Jenny (West Indies, Grenada): volcanic unrest, eruption warning (updated 24 Jul 2015)
Krakatau (Sunda Strait, Indonesia): steaming, seismic unrest (updated 31 Mar 2014)
Kuchinoerabu-jima (Ryukyu Islands): large explosive eruption on 29 May 2015 (updated 27 Mar 2015)
Lokon-Empung (North Sulawesi, Indonesia): small explosions, lava flow? (updated 31 Aug 2015)
Lopevi (Vanuatu): eruption warning (updated 16 Dec 2014)
Mayon (Luzon Island): steaming (updated 18 Dec 2014)
Merapi (Central Java, Indonesia): sporadic phreatic explosions (updated 21 Aug 2015)
Nyamuragira (DRCongo): active lava lake (updated 29 Nov 2014)
Ontake-san (Honshu): steaming, low seismic activity (updated 18 Dec 2014)
Papandayan (West Java): steaming (updated 6 May 2013)
Pavlof (Alaska Peninsula, USA): steaming, elevated seismic activity (updated 22 Dec 2014)
Poas (Costa Rica): phreatic explosions (updated 14 Oct 2014)
Rasshua (Central Kuriles)
Raung (East Java): intra-caldera eruption with lava flow and strombolian activity (updated 27 Aug 2015)
Rincón de la Vieja (Costa Rica): phreatic explosions from crater lake (updated 21 Sep 2014)
Sabancaya (Peru): steaming, elevated seismic activity (updated 27 Aug 2015)
Sacabaya (Northern Chile, Bolivia and Argentina)
San Cristobal (Nicaragua): possible ash emission on 11 April (updated 9 Mar 2015)
San Miguel (El Salvador): degassing, seismic unrest, sporadic ash emissions (updated 28 Jan 2015)
Sangeang Api (Indonesia): steaming, possibly weak lava extrusion at summit (updated 24 Aug 2015)
Shishaldin (United States, Aleutian Islands): mild explosive activity, intermittent more intense phases (updated 4 Sep 2015)
Sirung (Pantar Island, Indonesia ): degassing (updated 10 Jul 2015)
Slamet (Central Java): steam emissions (updated 12 Jan 2015)
Turrialba (Costa Rica): ash emissions, weak strombolian activity (updated 18 Aug 2015)
Ubinas (Peru): intermittent ash emissions (updated 24 Aug 2015)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Aug 2013)
Zhupanovsky (Kamchatka, Russia): intermittent ash emissions (updated 22 Jun 2015)

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